(swimming and diving) hold good or bad for health, why?
Hold your breath. The breath is a form of exercise, but if the holding time is too long, can cause dizziness, chest pain and other symptoms, the elderly are the best little exercise. Some people suffering from cardiovascular and cerebrovascular diseases is also best not to practice breath, otherwise it will cause brain and myocardial ischemia, cardiac insufficiency, aggravating illness. People in the practice of breath, must grasp a degree, if chest tightness, dizziness and other symptoms should immediately stop zhang.
For teenagers, practice breath is not advocated, will be damage to the heart and lung function!Don't let yourself get sickThe human "urgent, cannot bear again. Human respiratory, digestive, excretory and other organs are also more than a channel of human health, when the accumulation of excreta to a certain extent, can not timely and reasonable discharge, the chance of adverse effects on the body.
The breath is beneficial to the body, especially the great help of vital capacity.Good breath mainly through the bellows diaphragm to expand the tensile rate of respiratory exercise, visceral organs, can promote digestion and absorption. In addition to this basic function, there may be other benefits, but that is determined by the practiced power law.
